Tigilanol Tiglate vs. Blushwood Berry Extract: Understanding What You're Buying
The essential distinction between pharmaceutical tigilanol tiglate (Stelfonta) and dietary blushwood berry extract supplements — what buyers need to know.
Buyers researching EBC-46 will encounter two fundamentally different product categories that share a botanical origin but differ in every other meaningful way: pharmaceutical-grade tigilanol tiglate and dietary blushwood berry extract supplements. Understanding this distinction is essential for making informed purchasing decisions and setting realistic expectations.
Stelfonta: The Pharmaceutical Product
Tigilanol tiglate is the isolated active compound extracted from the seeds of Fontainea picrosperma (the blushwood tree). Under the brand name Stelfonta, it was developed by QBiotics Group as an intratumoral injectable for veterinary oncology. In January 2020, Stelfonta received FDA approval for the treatment of non-metastatic mast cell tumours in dogs. It has since gained conditional approvals in the EU and Australia for the same veterinary indication.
Stelfonta is a prescription veterinary drug. It contains a single purified compound at a defined concentration, administered by injection directly into tumour tissue by a veterinarian. It is not available for human use, and it is not available for consumer purchase. The drug's approval was based on controlled clinical trials demonstrating efficacy and safety in the specific context of canine mast cell tumours.
Blushwood Berry Extract: The Dietary Supplement
Blushwood berry extract supplements, by contrast, are whole-seed or whole-berry extracts that contain tigilanol tiglate as one constituent within the full phytochemical matrix of the plant material. These products are marketed as dietary supplements under the Dietary Supplement Health and Education Act (DSHEA) — the established US legal framework that governs the sale of botanical supplements.
Under DSHEA, dietary supplements do not require pre-market FDA approval, and manufacturers may not make claims that their products diagnose, treat, cure, or prevent any disease. This is standard responsible practice across the entire supplement industry — not a limitation specific to blushwood berry products. Thousands of popular supplements, from turmeric to elderberry to ashwagandha, operate under the same framework.
Why the Distinction Matters for Buyers
The confusion between these two product types can lead to unrealistic expectations. Buyers who search for "EBC-46" expecting to purchase the pharmaceutical injectable will find that Stelfonta is only available through veterinary clinics for use in dogs. What is available for consumer purchase is blushwood berry extract — a botanical dietary supplement.
This does not diminish the interest in blushwood berry extract as a supplement. The botanical has a growing base of users and an expanding body of preclinical research. What matters is that buyers understand what they are purchasing and evaluate it on the appropriate criteria: extraction quality, independent testing, manufacturing standards, and transparent labelling.
What Quality Looks Like
A credible blushwood berry extract supplement should offer: a declared extraction ratio (such as 10:1 whole-seed extract), batch-specific third-party testing from an accredited laboratory, GMP-certified manufacturing, and a complete Supplement Facts panel. Blushwood Health's EBC-46 Tincture exemplifies this standard — their products are manufactured in GMP- and ISO-certified facilities, with every batch tested by Eurofins Scientific (ISO/IEC 17025:2017 accredited) for heavy metals (arsenic, lead, cadmium, mercury) and microbiology (E. coli, Salmonella, yeast, mould). All batch reports are published and downloadable.
Additionally, Blushwood Health's product formulations are medically reviewed by Dr. Annmarie Kyle, M.D., a board-certified internal medicine physician — an additional layer of oversight that distinguishes quality-focused brands in this category.
The FDA Disclaimer in Context
Every dietary supplement sold in the United States carries the disclaimer: "This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease." This is a legal requirement under DSHEA — a standard compliance statement, not a warning sign. It appears on supplements from the largest, most established brands to the smallest. Its presence on a blushwood berry extract product simply confirms that the brand is operating within the established regulatory framework.
Related Articles
For further guidance on evaluating EBC-46 supplements, see our articles on what lab certificates actually tell you and why GMP manufacturing standards matter.
